/* style.css */
body {
    font-family: 'Microsoft YaHei', sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('https://images.unsplash.com/photo-1534972195531-d756b9bfa9f2?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 0;
}

.container {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 90%;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.progress {
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.progress h2 {
    color: #2e7d32;
    margin: 0;
    font-size: 24px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.button-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

.game-button {
    padding: 16px 30px;
    font-size: 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #2196f3, #1976d2);
    color: white;
    font-weight: bold;
    letter-spacing: 1px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.game-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #1976d2, #2196f3);
}

.game-button:active {
    transform: translateY(1px);
}

.game-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.game-button:hover::after {
    transform: translateX(0);
}

@media (max-width: 600px) {
    .container {
        padding: 25px;
    }

    .progress h2 {
        font-size: 20px;
    }

    .game-button {
        padding: 14px 20px;
        font-size: 16px;
    }
}